Non-light-emitting variable transmission device and a method of forming the same
US11714327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2018 |
| Grant date | Aug 1, 2023 |
| Priority date | — |
| Expiry date | Dec 25, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2001/1536
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A non-light-emitting variable transmission device can include an active stack; a transparent conductive layer overlying the active stack; an antireflective layer overlying the transparent conductive layer and defining a hole; and a bus bar comprising a conductive tape that extends into the hole and contacts the transparent conductive layer. Proper selection of materials and design of a bus bar can allow an electrical connection to be made to the transparent conductive layer without the need to cut an underlying transparent conductive layer. A method of forming the non-light-emitting variable transmission device can include patterning the antireflective layer to define the hole that extends to the transparent conductive layer. Improved control in patterning allows the antireflective layer to be relatively thin and not remove too much of the underlying transparent conductive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.